Re: [tip: sched/core] sched/numa: Avoid migrating task to CPU-less node

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Subject: Re: [tip: sched/core] sched/numa: Avoid migrating task to CPU-less node
From: Qian Cai <quic_qiancai@xxxxxxxxxxx>
Date: Wed, 2 Mar 2022 07:37:59 -0500
Cc: <linux-kernel@xxxxxxxxxxxxxxx>, <linux-tip-commits@xxxxxxxxxxxxxxx>, "Peter Zijlstra (Intel)" <peterz@xxxxxxxxxxxxx>, <x86@xxxxxxxxxx>, <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>
In-reply-to: <87v8wx1850.fsf@yhuang6-desk2.ccr.corp.intel.com>
References: <20220214121553.582248-2-ying.huang@intel.com> <164512421264.16921.689831789198253265.tip-bot2@tip-bot2> <Yh6H8SPSqpjv1dl7@qian> <87v8wx1850.fsf@yhuang6-desk2.ccr.corp.intel.com>

On Wed, Mar 02, 2022 at 08:59:55AM +0800, Huang, Ying wrote:
> Thanks for reporting!  Can you try whether the following debug patch can fix the issue?

Yes, it prevents the crash.

References:
- [tip: sched/core] sched/numa: Avoid migrating task to CPU-less node
  - From: tip-bot2 for Huang Ying
- Re: [tip: sched/core] sched/numa: Avoid migrating task to CPU-less node
  - From: Qian Cai
- Re: [tip: sched/core] sched/numa: Avoid migrating task to CPU-less node
  - From: Huang, Ying

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